[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fmlLQBD5ma5kgrEx3Eni0zE6PH1h8sNkyPEd79Mn5rBc":3},{"article":4,"iocs":54},{"id":5,"title":6,"slug":7,"summary":8,"ai_summary":9,"brief":10,"full_text":11,"url":12,"image_url":13,"published_at":14,"ingested_at":15,"relevance_score":16,"entities":17,"category_id":32,"category":33,"article_tags":36},"8de3c943-ba11-4171-b455-9904c19f9d8a","CISA Adds Four Known Exploited Vulnerabilities to Catalog","cisa-adds-four-known-exploited-vulnerabilities-to-catalog-d90663","CISA has added four new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2025-25249 Fortinet Multiple Products Heap-based Buffer Overflow Vulnerability CVE-2026-19490 Citrix NetScaler Authentication Bypass Using an Alternate Path or Channel Vulnerability CVE-2026-87491 Google Chromium V8 Out of Bounds Write Vulnerability CVE-2026-20079 Cisco Firewall Management Center Authentication Bypass Using an Alternate Path or Channel Vulnerability These types of vulnerabilities are a frequent attack vector for malicious cyber actors and pose significant risks to the federal enterprise. Binding Operational Directive (BOD) 26-04: Prioritizing Security Updates Based on Risk establishes vulnerability management requirements for Federal Civilian Executive Branch (FCEB) agencies. BOD 26-04 reinforces the importance of the KEV Catalog and requires federal agencies to prioritize rapid remediation of high-risk vulnerabilities, specifically those identified by Common Vulnerabilities and Exposures (CVEs) listed in CISA’s KEV Catalog on publicly exposed assets that grant total control of the asset post-exploitation, while deferring action for lower-risk vulnerabilities. BOD 26-04 further establishes basic expectations for when agencies must check whether threat actors compromised the system before the patch was applied. While BOD 26-04 applies only to FCEB agencies, CISA encourages all organizations to adopt risk-based vulnerability management and prioritize remediation of KEV Catalog vulnerabilities. CISA will continue to add vulnerabilities to the catalog that meet the specified criteria. Aware of an exploited vulnerability not currently listed in the KEV Catalog? Submit it for potential addition through CISA’s KEV Nomination Form. Potential KEV additions must have a CVE ID, evidence of exploitation, and clear mitigation guidance.","CISA has updated its Known Exploited Vulnerabilities (KEV) Catalog with four new entries, citing evidence of active exploitation. These vulnerabilities affect products from Fortinet, Citrix, Google Chromium, and Cisco. The update reinforces the importance of CISA's Binding Operational Directive (BOD) 26-04, which mandates federal agencies prioritize the remediation of these high-risk vulnerabilities on public-facing assets.","CISA adds four actively exploited vulnerabilities to its KEV Catalog.","Alert CISA Adds Four Known Exploited Vulnerabilities to Catalog Release DateSeptember 09, 2026 CISA has added four new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2025-25249 Fortinet Multiple Products Heap-based Buffer Overflow Vulnerability CVE-2026-19490 Citrix NetScaler Authentication Bypass Using an Alternate Path or Channel Vulnerability CVE-2026-87491 Google Chromium V8 Out of Bounds Write Vulnerability CVE-2026-20079 Cisco Firewall Management Center Authentication Bypass Using an Alternate Path or Channel Vulnerability These types of vulnerabilities are a frequent attack vector for malicious cyber actors and pose significant risks to the federal enterprise. Binding Operational Directive (BOD) 26-04: Prioritizing Security Updates Based on Risk establishes vulnerability management requirements for Federal Civilian Executive Branch (FCEB) agencies. BOD 26-04 reinforces the importance of the KEV Catalog and requires federal agencies to prioritize rapid remediation of high-risk vulnerabilities, specifically those identified by Common Vulnerabilities and Exposures (CVEs) listed in CISA’s KEV Catalog on publicly exposed assets that grant total control of the asset post-exploitation, while deferring action for lower-risk vulnerabilities. BOD 26-04 further establishes basic expectations for when agencies must check whether threat actors compromised the system before the patch was applied. While BOD 26-04 applies only to FCEB agencies, CISA encourages all organizations to adopt risk-based vulnerability management and prioritize remediation of KEV Catalog vulnerabilities. CISA will continue to add vulnerabilities to the catalog that meet the specified criteria. Aware of an exploited vulnerability not currently listed in the KEV Catalog? Submit it for potential addition through CISA’s KEV Nomination Form. Potential KEV additions must have a CVE ID, evidence of exploitation, and clear mitigation guidance. This product is provided subject to this Notification and this Privacy & Use policy. Please share your thoughts We recently updated our anonymous product survey; we welcome your feedback.","https:\u002F\u002Fwww.cisa.gov\u002Fnews-events\u002Falerts\u002F2026\u002F09\u002F09\u002Fcisa-adds-four-known-exploited-vulnerabilities-catalog",null,"2026-09-09T12:00:00+00:00","2026-09-09T20:00:07.929119+00:00",9,[18,21,23,25,27,30],{"name":19,"type":20},"CISA","vendor",{"name":22,"type":20},"Fortinet",{"name":24,"type":20},"Citrix",{"name":26,"type":20},"Google",{"name":28,"type":29},"Chromium V8","product",{"name":31,"type":20},"Cisco","80544778-fabb-4dcd-aa35-17492e5dcf4f",{"id":32,"icon":13,"name":34,"slug":35},"Vulnerabilities","vulnerabilities",[37,42,44,49],{"category":38},{"id":39,"icon":13,"name":40,"slug":41},"217d3263-c763-41ca-875e-06901f522fe0","NIST","nist",{"category":43},{"id":32,"icon":13,"name":34,"slug":35},{"category":45},{"id":46,"icon":13,"name":47,"slug":48},"c5c77cdb-f7d7-4990-9436-c81dcbff1163","Policy","policy",{"category":50},{"id":51,"icon":13,"name":52,"slug":53},"e7b231c8-5f79-4465-8d38-1ef13aea5a14","Threat Intelligence","threat-intelligence",[55,59,62,65],{"type":56,"value":57,"context":58},"cve","CVE-2025-25249","Fortinet Multiple Products Heap-based Buffer Overflow Vulnerability",{"type":56,"value":60,"context":61},"CVE-2026-19490","Citrix NetScaler Authentication Bypass Using an Alternate Path or Channel Vulnerability",{"type":56,"value":63,"context":64},"CVE-2026-87491","Google Chromium V8 Out of Bounds Write Vulnerability",{"type":56,"value":66,"context":67},"CVE-2026-20079","Cisco Firewall Management Center Authentication Bypass Using an Alternate Path or Channel Vulnerability"]